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127
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GIS
1998
ACM
15 years 2 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
119
Voted
MP
1998
113views more  MP 1998»
15 years 2 months ago
Generalized semi-infinite optimization: A first order optimality condition and examples
We consider a generalized semi-infinite optimization problem (GSIP) of the form (GSIP) min{f(x) Ix E M}, where M = {x E N"lhi(x ) = 0, i = 1,...,m, G(x,y) /> 0, y E Y(x)} ...
Hubertus Th. Jongen, Jan-J. Rückmann, Oliver ...
115
Voted
PAMI
1998
107views more  PAMI 1998»
15 years 2 months ago
Graph Matching With a Dual-Step EM Algorithm
—This paper describes a new approach to matching geometric structure in 2D point-sets. The novel feature is to unify the tasks of estimating transformation geometry and identifyi...
Andrew D. J. Cross, Edwin R. Hancock
139
Voted
RC
2002
103views more  RC 2002»
15 years 2 months ago
Exact Minkowski Products of N Complex Disks
An exact parameterization for the boundary of the Minkowski product of N circular disks in the complex plane is derived. When N > 2, this boundary curve may be regarded as a gen...
Rida T. Farouki, Helmut Pottmann
120
Voted
TROB
2002
126views more  TROB 2002»
15 years 2 months ago
Modeling and controllability for a class of hybrid mechanical systems
Abstract-- This work studies a class of hybrid mechanical systems that locomote by switching between constraints defining different dynamic regimes. We develop a geometric framewor...
Francesco Bullo, Milos Zefran